21861540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121453}}^1$

素因数の和:121468

約数の個数: 36

約数和(自身を含む): 66313884

約数和(自身を除く): 44452344

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121453, 242906, 364359, 485812, 607265, 728718, 1093077, 1214530, 1457436, 1821795, 2186154, 2429060, 3643590, 4372308, 5465385, 7287180, 10930770, 21861540]

約数ペア:

[(1, 21861540), (2, 10930770), (3, 7287180), (4, 5465385), (5, 4372308), (6, 3643590), (9, 2429060), (10, 2186154), (12, 1821795), (15, 1457436), (18, 1214530), (20, 1093077), (30, 728718), (36, 607265), (45, 485812), (60, 364359), (90, 242906), (180, 121453)]